to be fair that is framing content under the Trueveo name, as opposed to adding a "toolbar" at the top of the page.
At first I didn't mind the digg bar, but since working on a project which sometimes comes across digg bar links...quite simply I !#?*ing hate it. They've broken how the web works, now I need to specially parse the page to find the real link. The least they could do is change it so it only shows the Digg bar to user-agents that are from a well known browser, else just redirect to the real URL.